CVR 6 and 7

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The flashcards below were created by user Bobopudge on FreezingBlue Flashcards.

  1. These two words, are the difference between maximum cardiac output and resting cardiac output
    Cardiac Reserve
  2. What are the 2 determinants of CO?
    • Heart rate
    • SV
  3. What are the 3 determinants of SV?
    • Preload
    • Afterload
    • Contractility
  4. This is the load on a muscle in the relaxed state
    • Preload
    • It causes the muscle to stretch and develop passive tension
    • Its basically End Diastolic Volume
  5. This is the load on a muscle during contraction
    • Afterload
    • So left ventricular afterload is basically aortic pressure
  6. This is a change in performance at a given preload
  7. What does the frequency-force relationship show?
    • Increasing HR increases Contractility
    • Because more Ca+ activates more cross-bridges
  8. What does Starling's law say?
    • More EDV --> greater force o contraction --> more SV--> more CO
  9. This....This is Frank Starling
  10. Equalization
  11. Nerve supply to the Heart:

Card Set Information

CVR 6 and 7
2011-03-31 13:19:07
CVR starling length tension frequency force

nervous control of heart
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